user32: Check for NULL pointer in ToUnicodeEx.

1059ee3c · Sebastian Lackner · Alexandre Julliard · 0601c865 · 1059ee3c
Commit 1059ee3c authored Apr 06, 2015 by Sebastian Lackner Committed by Alexandre Julliard Apr 06, 2015
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input.c dlls/user32/input.c +1 -0

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--- a/dlls/user32/input.c
+++ b/dlls/user32/input.c
@@ -1022,6 +1022,7 @@ INT WINAPI ToUnicode(UINT virtKey, UINT scanCode, const BYTE *lpKeyState,
 INT WINAPI ToUnicodeEx(UINT virtKey, UINT scanCode, const BYTE *lpKeyState,
 		       LPWSTR lpwStr, int size, UINT flags, HKL hkl)
 {
+    if (!lpKeyState) return 0;
    return USER_Driver->pToUnicodeEx(virtKey, scanCode, lpKeyState, lpwStr, size, flags, hkl);
 }